Question 17
PolynomialsIf 3x2 + px + 12 = 0 has equal roots, find the values of p.
- A.±3
- B.±4
- C.±6
- D.±12
Show the answer and explanation
Answer: D (±12)
Explanation
Equal roots need p² − 4(3)(12) = 0, so p² = 144 and p = ±12.
If 3x2 + px + 12 = 0 has equal roots, find the values of p.
Answer: D (±12)
Equal roots need p² − 4(3)(12) = 0, so p² = 144 and p = ±12.